Mmmm ...
.....
there are other points (influential) of view which seem to think that even one per month is excessive. ....
And i'd be willing to bet that the above (influential) point of view comes from somebody who will not be called out to actually do the task or has forgotten how very quickly it can go horribly wrong ..... (see recent post re Spanish 139 event).
BTW ... What a/c are you using, how many crews do you need to keep current, will NVGs be used and is the Wx usually benign or vicious?
Cheers
